hi.. I neeed helpp.

one ball is drawn from a bag containing 1 yellow, 2 oranges, 3 pink and 2 whitemarbles. State the probability of the folllowing colours. Write your answers in decimal form. Explain each step and how u did it please. Thanks a lot - ahmad. Desperate of help test is tomorrow I really need it. :( :confused:

a) P(white) b) P(pink) c) P(yellow) d) P(orange)

We could help you by showing the real answer if you show an attempt :P. Here are some questions that might help: How many marbles are there in all? If you wanted to pick up a yellow one what would your chance be? (how many yellows are there and how many marbles are there in all?)

Here is a probability formula:

P(A) =

The Number Of Ways Event A Can Occur
___________________________________

The Total Number Of Possible Outcomes



Simple version for this problem:

Number of said colored marbles
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Number of total marbles

Here is the website I got the first formula from and it will probably help you more than I can. Probability (http://www.mathgoodies.com/lessons/vol6/intro_probability.html)

There are 8 marbles total. Out of those there are 2 white one. Therefore, the probability of picking a white is 2/8=1/4. See? Use similar technique on the other questions. See?